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Old 04-03-2013, 06:50 PM   #2
Wasserpest
Are these real?
 
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This is staghorn algae. In my experience, if you do everything right to get your plants growing, staghorn is a temporary nuisance, and disappears all by itself after a few weeks.

To get plants growing, they need nutrients. One important one is NO3, so if your nitrate levels are zilch, your plants will have issues, now or down the line.
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